149172 has 24 divisors (see below), whose sum is σ = 360192. Its totient is φ = 48000.

The previous prime is 149161. The next prime is 149173. The reversal of 149172 is 271941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172 + ... + 572.

It is an arithmetic number, because the mean of its divisors is an integer number (15008).

2¹⁴⁹¹⁷² is an apocalyptic number.

149172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

149172 is an abundant number, since it is smaller than the sum of its proper divisors (211020).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

149172 is a wasteful number, since it uses less digits than its factorization.

149172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 439 (or 437 counting only the distinct ones).

The product of its digits is 504, while the sum is 24.

The square root of 149172 is about 386.2279119898. The cubic root of 149172 is about 53.0349834302.

The spelling of 149172 in words is "one hundred forty-nine thousand, one hundred seventy-two".